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STOCK-BASED COMPENSATION, Stock Options (Details) | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2021 USD ($) Grant shares | Sep. 30, 2020 shares | Sep. 30, 2021 USD ($) Installment Grant shares | Sep. 30, 2020 USD ($) shares
Stock-based Compensation [Abstract] |  |  |  |
Number of stock option grants made | Grant | 2 |  | 2 |
Assertions Used in Determining Fair Value of Stock Options Granted [Abstract] |  |  |  |
Proceeds from the exercise of stock options | $ |  |  | $ 10,202 | $ 0
Stock Option [Member] |  |  |  |
Stock-based Compensation [Abstract] |  |  |  |
Number of stock option awards granted (in shares) | shares | 232,300 | 0 | 3,598,048 | 0
Assertions Used in Determining Fair Value of Stock Options Granted [Abstract] |  |  |  |
Weighted average risk-free rate | 0.97% |  | 1.06% |
Weighted average volatility | 143.29% |  | 134.88% |
Dividend yield | 0.00% |  | 0.00% |
Expected term | 6 years 29 days |  | 6 years 29 days |
Stock option exercised (in shares) | shares | 0 | 0 | 1,300 | 0
Proceeds from the exercise of stock options | $ | $ 10,202 |  | $ 10,202 |
Options exercised total intrinsic value | $ | $ 47,010 |  |  |
Time-Based Non-qualified Stock Option [Member] |  |  |  |
Stock-based Compensation [Abstract] |  |  |  |
Number of stock option awards granted (in shares) | shares |  |  | 2,627,915 |
Number of monthly installments | Installment |  |  | 36 |
Time-Based Non-qualified Stock Option [Member] | Vesting on one-year Anniversary |  |  |  |
Stock-based Compensation [Abstract] |  |  |  |
Stock-based compensation vesting percentage |  |  | 25.00% |
Performance-Based Nonqualified Stock Option [Member] |  |  |  |
Stock-based Compensation [Abstract] |  |  |  |
Number of stock option awards granted (in shares) | shares |  |  | 597,253 |
Stock-based compensation grant fair value | $ |  |  | $ 4,288,738 |

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- Definition Amount of cash inflow from exercise of option under share-based payment arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2A -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=120381028&loc=SL79508275-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3255-108585 + Details
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- Definition The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (f)(2)(iii) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (f)(2)(ii) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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